Knitting-machine for making antiravel courses in hosiery.



E. BED/IRI).

KNITTING MACHINE FOR MAKING ANTIRAVEL COURSES IN HOSIERY.

APPLICATION FILED AuG.3I. ISIS.

1,250,773 .y Patented Dec. 18, 1917.

STA ES onnro.

EMIL BEDAND, OF PAw'rUcKET, RHODE ISLAND, AssIGNon 'ro :HEMPHILLMinturno-4 TURING OOMPANY, A CORPORATION OF RHODE ISLAND.

Specication of Iletters Patent.

Patented Dc. 1e, 1917.

Application led August 31, 1915. Serial No. 48,233.

To all fwjom it may concern.'

Be it 'known that I, EMIL BEDARD, citizen of the United States, residing at Pawtucket, Rhode Island, have invented certain new and/useful Improvements in Knitting-Machinesgfor Making Antiravel Courses in Hosiery, of which the following is a specification.

For making an anti-raveling course of stitches in the leg of a stocking it has lbeen proposed heretofore to so control the needles that certain needles will knit while others tuck in said course, the said machine being provided with jacks under alternate needles, and'f having automatically operating controlling cams for the needles whereby the needles are divided so that alternate needles will perform their knitting operation in-the ordinary way by being advanced above the line of the fabric yto take new yarn and to get the old stitch below the latch so that this Stitch will be cast when the needle is drawn down at the stitch point, whereas the other needles will not be advanced high enough to cause their latches to free themselves from the old stitch, but will hold said old stitch and take on new yarn and form a second stitch, both of which will be cast olf simultaneously, thus forming stitches in this course on every other' needle, after which all of the needles proceed with regular knitting.

My resent improvement is designed to simpli y the machine by dispensing with the jacks and by dispensing with certain needle and jack controlling cams heretofore proposed, and substituting therefor a simpler cam arrangement.

For this purpose I employ needles having latches of normal length alternating with needles having long latches throughout the needle circle. I also employ the usual knitting cam set of the well known Banner machine, and in addition I employ a needle elevating cam which is automatically adjustable for causing the needles to perform either their regular knitting or to form tuck stitches on the alternate needles having the long latches.

The invention is shown in the accomanyinfr drawing which is of ldiagrammatic orm sliowing the cam set and the knitting wave.

In these drawings the ordinary set of cams for Operating the needles as used on the and as in ordinary practice also the instep needles may have longer butts than the heel and toe needles to be operated upon by the instep cam 6, though it will be understood that I do not limit myself to the use of needles having different lengths of butts or to the use of the particular instep cam 6 shown herein.

Every other needle a throughout the needle circle including both the heel and toe and instep needles has a latch of ordinary length, while the needles b alternating in position throughout the needle circle with the needles a have long latches. Interposed between the instep cams 6, 6 and the ordinary set of needle cams A I arrange a vertically moving cam 7 on the outer side of the ordinary cam ring 8, and I provide above this cam a'fixed guard cam 9. In/ the particular embodiment of .my invention herein described, when the cam 7 is elevated to the position shown at 7X all the needles throughout the needle circle will be elevated so that the latches of all Vthe long latch needles as also the latches of all the short latch needles will bemoved up through the old stitches, and said old stitches will be cleared from, the latches, both long and short, onto the stems of' the needles and when the needles are advanced by the cam 4 regular knitting will be performed. The needle butts are indicated at 10, and the direction of movement for round knitting is in the direction of the arrow, it being understood that the machine is preferably one of the rotary cylinder type.

As just stated, when the elevating cam 7 is in its elevated position all of the needles Athroughout the needle circuit will perform ordinary knitting. When the cam 1s shifted downwardly so that its point is below or even with the upper edge of the cam ring 8, which upper edge is the normal plane of the needle butts, these needle butts will pass the cam 7 and below the cam 9 without being be advanced as in the ordinary Banner machine when they reach the upper surface of the cam 4. 'The long latch needles, however, will not be advanced high'enough by cam 4 to carry their latches up through the old loops, and hence these long latch needles wlll .retain their loo s and will take yarn from the feed linger indicated at B, and upon the retraction of the needles by the stitch cam 4 the short latch needles will cast their loops, but the lcng latch needles will hold their loops, and on the next round the cam 7, having been first elevated, the long latch needles will clear both loops onto the1r stems and these will be cast by the stitch cam and tuck stitches will therefore be formed on these needles. When the cam 7 is elevated for ordinary knitting, the long latch needles,-

as well as the short latch needles, will be elevated above the knitting plane in dlcated by the dotted line m-m, and the fabric loops will get below the latches of all of the needles and notwithstanding the fact that all of the needles are immediately retracted to their normal plane by the guard cam ordinary knitting will be proceeded with because the needles will rideup over the cam 4, and they will all receive thread from the feeder B and upon their retraction by the cam 4 the old loops will be cast od and ordinary knitting will be performed. The cam 7 may bevoperated in various ways, but as an example I show a rod 11 connected with this cam, said cam being connected to a lever 12 pressed by a spring 13 and having its forward end resting upon a cam 14 of the Well known cam drum of the Banner machine. This cam is provided with a low part at 15, and when this comes around under the end ofthe lever 12, said lever will fall and lower the cam 7 and the parts will remain in this position for one round to allow the long latch needles to take on the new thread While the old loops are still held on the latches of these needles. l

The cam drum then makes a movement lifting the cam-7 sothat-all of the needles v dle circle, a yarn feeder, stitch cam means,

a movable needle elevating cam, and automatically operating means for actuating the latter to perform'in round knitting, in connection with the' stitch cam means, regular knitting on all the needles for the main body of the fabric and regular stitches on the short latch needles alternating with tuck stitches on the long latch needles for an anti-raveling course or courses of knitting, substantially as described.

2. ln a circular knitting machine and in Lacoste combination, needles having short latches alternating with'needles having long latches throughout the needle circle, a yarn feeder, stitch cam means, a movable needle elevating cam, which latter when raised, performs in round knitting, in conjunction with the stitch cam means regular knitting on all the needles, and which when lowered ermits said stitch cam means to make wlth the short latch needles regular stitches and with said long latch needles tuck stitches alterhating throughout the course or courses and means for operating the movable elevating cam, and a guard cam for restoring the elevated needles.

3. ln combination in a circular knitting machine, needleshaving short latches alternating with needles having long latches throughout the needle circle, a yarn feeder, and needle cams including stitch and advancing cams, and a movable needle elevating cam, the latter cam when in its raised position elevating bothv the short and long latch needles to clear the loops from their latches onto their stems, a guard cam for retracting all of the needles to their normal plane after being elevated to clear their loops, said advancing cam then advancing vposition allowing the needles to retain their loops on thelr latches until the advancing cam is reached which then advances all the needles to take the yarn and clears the old loops below the short latches while maintaining the loops on the long latches for the formation of tuck stitches thereon alternating with regular stitches on the short latch needles, substantially as described.

4. In combination in a circular knitting machine, needles having short latches alternating with needles having long latches' throughout the needle circle, a yarn feeder, stitch cam means, a'movable needle elevating cam which latter when raised, performs, in conjunction with the stitch cam means, regular knitting on all the needles and which, when lowered permits said stitch cam means to perform regular knittin with the short latch needles and tuck knitting on the alternate or long latch needles, a pattern cam and a connection deriving a back and forth movement from said pattern cam which it imparts directly to said movable needle elevating cam, substantially as described.

5. In combination in a circular knitting vmachine, needles having short latches altermeans, regular knitting on all the needles and which, when lowered permits said advancing cam to perform regular knitting with the short latch needles and tuck knitting on the alternate or long latch needles, a pattern cam having a high and a low part, a lever raised' and lowered thereby, and a rod connecting said lever directly with the movable elevating cam, substantially as described.

6. In combination in a circular knitting machine, needles having short latches alter nating with needles having long latches throughout the needle cir( le, said needles comprising an instep set and a heel and toe set having respectively long and short butts, an instep cam to elevate the long butt needles, stitch cam means, and a needle elevating cam in advance of the stitch cam means on round knitting, and means for raising and lowering said cam, said cam when raised elevating the long and short latch needles,.whether long or short butt, to perform in conjunction wlth the stitch cam means regular knitting on all the said needles and when lowered permitting said stitch cam means to perform regular-knitting with the short latch needles and tuck knitting on the alternate long latch needles, whether long or short butt, substantially as described.

In testimony whereof, I ailix my signature in presence of two witnesses.

, EMIL BEDARD. s Witnesses:

JAMES L. JENKS, JOHN LAwsoN. 

